Apply clippy suggestion

Author: marlonbaeten

frontend/src/dark_mode.rs

@@ -22,10 +22,7 @@ pub fn init_dark_mode() {
         }
     };
 
-    let body_invert = match local_storage.get_item(BODY_INVERT_KEY).unwrap().as_deref() {
-        Some(INVERT) => true,
-        _ => false,
-    };
+    let body_invert = matches!(local_storage.get_item(BODY_INVERT_KEY).unwrap().as_deref(), Some(INVERT));
 
     let body = web_sys::window()
         .unwrap()